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Light Essay Topics & Paper Examples

As I Grew Older – Langston Hughs

Are all men really created equal? The speaker in the poem “As I Grew Older” written by Langston Hughes certainly doesn’t think so. As the title suggests, the speaker was still growing and learning, so he couldn’t have been a wise man, though he still could be from a child to an adult. The poem’s title not only suggested the age of the speaker, but also clarified the meaning of the poem. I think that the speaker was sharing what he understood as he grew older: He understood that you have to learn to accept how things are, not just what’s in your dream. He understood that reality will never be as perfect as a dream. He also understood that…

A Short Story

The cold hit him straight way, and he turned to the see the appealing glow of the gas lamp that cast silhouettes on the walls, the shadows dancing with each flicker of the small flame. The wind blew quiet but harsh and found its way through the gaps in his woollen overcoat. He turned up the collar and regretted that there was no button to keep it in place. He scurried down the well-trodden path, passing withering plants and whatever else lay in the darkness. Without warning, the headlights of an approaching illuminated him against the darkness of the forest; he threw himself to the hard ground, scurrying towards the relative safety of the undergrowth. He didn’t dare to move,…

Project on Product Solar Lamp

Abstract of the Project Given India’s size and the sheer number of its farflung or remote villages, rural marketing is always a challenge. And when the product is relatively new, like solar lighting devices, the challenge gets even bigger. Yet the Jaipur-based Frontier Markets, or FM, founded by Ms. Ajaita Shah, has taken up the task and despite the odds to reach out to villages in state of Rajasthan, and seems to be succeeding with their strategy of marketing the new product. * Frontier Market conducted marketing sessions to build demand for products in BOP (Base of Pyramids) households. * Frontier Markets developed a peer-to-peer marketing strategy that is a creative, below-the-line marketing technique that are most likely to succeed…

Someone Who’Ll Watch over Me

On October 2, I watched a play at Ohio State-Newark. The play was called Someone Who’ll Watch Over Me and was about these three men that were being held hostage. The content of the play was their life while being held captive by unseen guards. Someone Who’ll Watch Over Me is a play consisting of an adequate set, pleasing costumes, decent lighting, and admirable acting. When the lights came on, at the beginning of the play, there was a lot to take in. It was a box set with yellow peeling walls showing patches of brick, covered in dirt and age. Around the bottom and top of the set was a colorful chunky border with orange, purple, and greens. This…

Significant Difference in Height of Bracken

Abstract: This investigation was designed to compare the height of Pteridium aquilinum in a light area and a dark area of Rushy Plains, Epping Forest and to establish if light intensity does have an effect on the growth of Pteridium aquilinum, commonly known as Bracken. From my research it was clear that the height of Bracken is affected by abiotic factors, other than light intensity, such as: soil moisture, soil temperature, air temperature and soil pH so I had to control these factors. I carried out preliminary experiments to find a suitable site where all these factors where constant. For my actual investigation I measure twelve random Brackens from both light and dark areas. I then carried out a Mann…

Light Pen

A light pen, also called a selector pen, is a computer input device in the form of a light-sensitive wand used in conjunction with a computer’s CRT display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touch screen but with greater positional accuracy. It was long thought that a light pen can work with any CRT-based display, but not with LCDs (though Toshiba and Hitachi displayed a similar idea at the “Display 2006″ show in Japan) and other display technologies. However, in 2011 Fairlight Instruments released its Fairlight CMI-30A, which uses a 17” LCD monitor with light pen control. A light pen is fairly simple to implement. Just…

The Success of Photosynthesis in Geranium Leaves

I. Abstract Photosynthesis is a process in which plants use light, water, and carbon dioxide to produce sugars, water and oxygen. Chlorophyll a and chlorophyll b, in the chloroplasts of a leaf, are responsible for absorbing wavelengths of light for use in photosynthesis with red and blue wavelengths being optimal. Testing for the most productive wavelength of light was done using four separate geranium leaves that were covered by red, green, and blue translucent filters, and black paper. The experimental areas of the leaves were compared to a control area that was left uncovered and a subjective rating from 0 to 5 was given to each area depending on the color seen after adding I2KI solution to the leaf. I2KI…

Organic Light Emitting Diode

Abstract: Organic Light Emitting Diode is a scalable nano level emerging technology in Flat Panel Displays and as a White Light Source with efficient features. This paper focuses on OLED structure, principle aspects, fabrication methodology and different techniques to replace current white light sources like Incandescent bulbs, Fluorescent tubes, and even display techniques like Liquid Crystal Displays, Plasma technologies. OLEDs can be fabricated using Polymers or by small molecules. OLED matrix displays offer high contrast, wide viewing angle and a broad temperature range at low power consumption. These are Cheaper, Sharper, Thinner, and Flexible. An OLED is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compounds which emit light in response to an…

All About Light-Physics

LIGHT * Light is part of the electromagnetic spectrum, the spectrum is the collection of all waves, which include visible light, Microwaves, radio waves ( AM, FM, SW ), X-Rays, and Gamma Rays. * In the late 1600s, important questions were raised, asking if light is made up of particles, or is it waves .? * Sir Isaac Newton, held the theory that light was made up of tiny particles. In 1678, Dutch physicist, Christian Huygens, believed that light was made up of waves vibrating up and down perpendicular to the direction of the light travels, and therefore formulated a way of visualising wave propagation. * This became known as ‘Huygens’ Principle’. Huygens theory was the successful theory of light…

The Optical Time Domain Reflectometer

In fiber optic networks, OTDR (Optical Time Domain Reflectometer) is an opto-electronic instrument used to characterize an optical fiber. Unlike power meters OTDR does not measure loss, but instead implies it by looking at the backscatter signature of the fiber. Generally, OTDR are used to determine the loss of any part of a system, the length of the fiber and the distance between any points of interest. Most of the light which is sent to the fiber can be detected at the other end, but a part of it is always absorbed or scattered. Absorption and scattering are caused by imperfections of fiber, small grains of dirt, for instance. Scattering means that light is not absorbed but it is just…

Opinion Essay on Inventions

A light-emitting diode (LED) is a semiconductor light source. [6] LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Appearing as practical electronic components in 1962,[7] early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness. When a light-emitting diode is switched on, electrons are able to recombine with holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor. A LED is often small in area (less than 1 mm2), and integrated…

Microscope Study

Microscopes are instruments that produce a magnified image of a small object. They are used in many scientific and industrial applications. Some common applications for microscopes include manufacturing inspection and high-technology quality control. Specific quality control applications for microscopes include semiconductor processing, medical imaging, cell research, and metallurgical analysis. Microscopes are supplied in one of three common configurations, student, benchtop, and research. There are many types of microscopes available including acoustic or ultrasonic, compound, fluorescent or ultraviolet (UV), inverted, laser or confocal, polarizing, portable field, scanning electron microscope (SEM), scanning force or atomic probe microscope (SFM/AFM), stereoscopes and transmission electron microscopes. Acoustic and ultrasonic microscopes, compound microscopes, and fluorescent and UV microscopes are available. Acoustic and ultrasonic microscopes use sound…

Glow

Investigation of the effect of cold temperatures on the lasting time of glow sticks. Aim: to investigate whether freezing a glow stick will affect its longevity. Hypothesis: The glow sticks will last longer when they are frozen than when they are at room temperature. Background information: Glow sticks are made of hydrogen peroxide, a phenyl oxalate called ester, and phosphorescent dye. The ester and phosphorescent dye are kept in one part of the glow stick, the hydrogen peroxide in the other, separated by a piece of glass. No chemical reaction occurs until the glass breaks, combining the chemicals together inside the tube. Cooling a glow stick slows the reaction a slightly and causes it to last longer, but the light…

The Hawthorne Experiments: Illumination Test

In the early 1920s Chicago’s Western Electric Hawthorne Works employed 12,000 workers. The plant was a primary manufacturer of telephones, and in 1924 the company provided a site to cooperate with the NRC on a series of test room studies to determine the relationship between illumination and worker efficiency. The basic idea was to vary and record levels of illumination in a test room with the expectation that as lighting was increased, productivity would too. In another test room, illumination was decreased, with the correlating expectation that efficiency would decrease. The electric power industry provided an additional impetus for these tests, hoping to encourage industries to use artificial lighting in place of natural light. The Illuminating Engineering Society’s Committee on…

Baby with the Bathwater

Red Rock Community College’s adaptation of Christopher Durang’s play Baby with the Bathwater, directed by James O’Leary, concluded its 8-show run with a sold out finale performance on Sunday April 23rd, 2005. When the lights came up on the bassinet in the otherwise darkness of the stage, the image more or less stands for everything that follows ? childhood, loneliness and abandonment. It seems that an icon of the entire human experience, not just the implied infancy, is being presented. When the lights come up even further, the bassinet gives way in significance to a married couple standing over it: John (Kyle LaBoria), the father that coos at “Daddy’s little baked potato,” and Helen (Amien Conway), the mother who object…

The Underpants play responce essay

Upon entering the auditorium at the University of Michigan- Flint campus viewers are approached by greeters who escort them to their seats and give them programs. Inside the program one will find notes from the director offering a background on the original author, Carl Sternheim, as well as on Steve Martin who adapted the play. The theatre has a proscenium stage that is adorned with set props that bring to life the home of Theo and Louise Maske. An intimate setting with seats butting right up to the stage. In the background elegant music played softly, reminiscent of the era in which the play is set in. The chatter of the audience members fills the theater as viewers wait patiently…

The Hawthorne experiments

The Hawthorne experiments were conducted by Professor Elton Mayo of Harvard University, over the period of five years from 1927 to 1932. These studies or experiments were performed in order to measure and observe productivity at Western Electric Hawthorne works in Chicago. The basic aim of the experiments was to understand and analyze the impact of light on the productivity of the workers. However, the results which were obtained from these studies suggested no clear link between the illumination and the work productivity however, these experiments proved the starting of research in more scientific way on the work related productivity and what variables can be changed to bring positive changes in the productivity of the workers. Later transformations into theory…

Fiber Optics- Definitions

1.Crosstalk – The coupling or transfer of unwanted signals from one pair within a cable to another pair. Crosstalk can be measured at the same (near) end or far end with respect to the signal source. Crosstalk is considered noise or interference and is expressed in decibels. 2.Waveguides – A structure that guides electromagnetic waves along their length. The core fiber in an optical-fiber cable is an optical waveguide. 3.FTTH – (fiber-to-the-home): Fiber reaches the boundary of the living space, such as a box on the outside wall of a home. Passive optical networks and point-to-point Ethernet are architectures that deliver triple-play services over FTTH networks directly from an operator’s central office. 4.Simplex – A link that can only carry…

Saving Energy at Home

Introduction: Everyone, take a second and think of how many times you leave the lights on in your house when you leave your house or how long you take to shower with hot water. Imagine all that energy you are wasting since no one else is using that light or how much energy is your water heater using to produce all that hot water. Saving energy at home is an easy way to save you a lot of money in the long run. We need to understand the benefits of saving up energy at home along with the effective ways of how to do it exactly. I will be showing you today, how doing something so minor as unplugging a…

A Study of the Badu Mangrove Community

Abstract A investigation took place at a large mangrove community called the ‘Badu Mangroves’. The interactions of organisms and the Badu Mangrove ecosystem were observed. While experiments were carried out to determine the abiotic ( e.g. temperature, humidity, soil pH ) and biotic ( e.g. number of seedlings distributed throughout a certain area, adaptations of animals ) features in the Badu Mangrove community. Aim The aim of this report was to explore the abiotic and biotic features concerning the growth and placement of grey mangroves (Avicennia Marina ) in the Badu Mangrove community at Sydney Olympic Park. The surface area of the Badu Mangroves is approximately 38 hectares, its location is Latitude: 33˚51’48.7″S Longitude: 151˚04’32.07″E Factors that influence the mangroves’…

“Piano and Drums” by Gabriel Okara and “Rising five” by Norman Nicholson

The two poems, “Rising five” by Norman Nicholson and “Piano and Drums” by Gabriel Okara share many of the same base themes through the use of language techniques. Both these poems are to do with life and yet both looked at different parts of it. They each used similar language techniques but for different reasons. They both use metaphors and imagery to emphasise their points In both “Rising five” and “Piano and Drums” metaphors are used to link the surrounding with life itself. In the poem, “Rising five” metaphors were used to show the inevitability of death, for example in the lines “we look for the grave in the bed: not living rising dead”, this indicates how that every single…

The Forsaken Expanse

The arid and sunburnt barren land of Arizona; eternal desert stretching for miles and miles. The intense sun blazes down on this harsh yet amazingly beautiful wilderness of red rocks, the incredible feeling of being the only person with a heart beating within miles sets in. The landscape never changes, it stays the same; no wind, no rain, just stale raw air. Inconceivable formations of canyons and immense rock structures set in the distance, circling the desert comparable to a tremendous bare stadium with red rocky stands that you know exist, but out of your reach. Every time your eyes wander back to study the distant rocky landscape it seems as if it were merely a projection onto the horizon….

Flame Test

1. An AM radio station broadcasts at a wavelength of 0.500 kilometers. Microwaves can have a wavelength of 12 cm. A fire place can give off photons with a wavelength of 1.5 x 10-3 millimeters and the X-rays used in a dentist’s office have a wavelength of 2.1 x 10-11 meters. Ultraviolet rays, the ones that give you sunburn or fade the colors of clothes have a wavelength of about 3.0 x 10-7 meters. From this data, what can you conclude about the energy of a photon with respect to its wavelength? Ans: Photons given off by the fire place has the shortest wavelength of 1.5×10-3 millimeters compared to the other wavelengths. As a result it will have the highest…

Photosynthesis Lab Report Purpose

To research the effect of different wavelengths (colors) of light on plant growth during photosynthesis. Background Information: Photosynthesis is the process by which sunlight is captured by chloroplasts within plant cells and turned into energy. This energy is used to help the plant grow roots, leaves, flowers and fruit. Energy is required by living things to: change shape, transportation, movement, growth, reproduction, etc. Red and blue light have the greatest effect on plant growth after white light The main pigment is chlorophyll which reflects green lights l Green and yellow light are the least effective Plants can utilize light in both the red and orange end and the blue end of the spectrum Blue light is more useful for vegetable…

Cabling – Definitions

Horizontal Cable- The cabling between and including the telecommunications outlet and the horizontal cross-connect. Backbone Cable- A cable connection between telecommunications or wiring closets, floor distribution terminals, entrance facilities, and equipment rooms either within or between buildings. Patch Cords- Any flexible piece of cable that connects one network device to the main cable run or to a patch panel that in turn connects to the main cable run. Connectors- With respect to cabling, a device attached to the end of a cable, receiver, or light source that joins it with another cable, device or fiber. A connector is a mechanical device used to align and join two conductors or fibers together to provide a means for attaching and decoupling it…

Environmental pollution: its effects on life and its remedies

The term pollution refers to the act of contaminating ones environment by introducing certain hazardous contaminants that disturb the ecosystem and directly or indirectly affect the living organisms of that ecosystem. Pollution in general is the activity of disturbing the natural system and balance of an environment. The increase in the pollution over the years by man has caused severe damage to the earth’s ecosystem. It is responsible for global warming which is leading to the end if all the lives on earth. Over the years there is an extreme increase in the rate of human diseases, and death rate of various animals and plants on earth, and that is all because of the pollution caused by man himself. AIR…

The Shoe-Horn Sonata

Music and sound effects: Sonata is a musical term describing something written specifically for two musical instruments Music is a linking device throughout the play Sonata is symbol that occurs throughout the play Bridie and Sheila burst into song at the end of the first interview session Their performance effectively takes us back to her past Aurally (what one hears) and visually historical information is conveyed When Jerusalem reaches a crescendo, scene of the Japanese invasion are juxtaposed on the backdrop screens, ironically contrasting image and triumphal song Lacking real instruments, we are told the prisoners had to improvise using their voices alone Even when numbers were decimated and the choir couldn’t sing anymore Bridie and Sheila fill the gap…

Fibre Optics

Optical Fibre is used to transmit light between 2 ends of the fibre, a ‘waveguide’ or ‘light pipe’. It is very thin, around the thickness of a human hair, and made of transparent fibre made of glass or plastic. Optical fibre is sometimes known as Fibre Optics when used in science and engineering. Instead of using one metal wire the threads of fibre optics are but in bundles which transmit messages and images and other data. Fibre optic cables can carry more data than metal cables as well as being less susceptible to interferences, being lighter and thinner and faster. However they are very expensive and fragile. Nevertheless most telephone and internet companies are starting to use fibre optics instead…

Polarized light lab report

ABSTRACT Ordinary light such as that from a light bulb is a form of wave motion that consists of electrical and magnetic fields that vibrate at right angles to the direction of travel of a light beam. Light waves that vibrate in a single plane are called polarized light waves. Such waves can be produced by passing light through polarizing filters. The experiment conducted was composed of crossed polarizers both qualitative and quantitative, polarization by reflection and of skylight were also tested by using a polarization filters. In conclusion, it was proven that polarization reduces unwanted reflected glare off surfaces. HYPOTHESIS If and only if a lens is polarized then regardless of orientation of incoming light waves light coming out…

Art assignment

1. List and describe three of the technological breakthroughs or discoveries that changed art during the Modern Era, 1800-1945. Indicate specific ways in which these changed the form and/or content, themes, purposes/functions of art, and the lives of artists. Photography Light bulbs Use of metal in construction There have been many inventions since the 19th century that has been incorporated in the artistic realm. Photography has created a new genre of art available to people. This invention allows people to see an image as it was meant to be which may have been something that could only be seen in the moment, like a fox and kits playing in the forest. Lights have affected almost every part of the average…